IHI'TYrilocKIJAS, co< lll.o. KItAs. K'I'C. 



<;nii.< PTYCHOCERAS, .I'Orl.. 



Shell In- nt once upon itself; tin- 1 wo s; raight portions in contact. 

 Flight species. Neoeomian to Cretaceous. Kuri>/n'; India: 



I'nih'd Milt,'*. 



T. KMKIIK IAM >. d'Orb. I'l. 1 o 1 . lig. ;>:5i;. Fro 



SuKgrnus Diptychoceras, <iaU>. 



Three straight limbs in contact. A /V//r//mv/v/N in rvrrv 

 n-spect except th:it it h;is nil :nllitun:il limb which incurves, en- 

 veloping both the preceding to :i slight degree only. Meek con- 

 siders it doubtfully identical with /V_//r//f/rf/v/s. 



Genus COCHLOCERAS, HIUT. 



Shell spirnlly elongated, scnhiritorni. strongly sculptured; 

 siitin-t-s of >ept;i with sevend rounded lobes. 



Three species. Alpine Trinssie. Halhltitl. Anttrui. 

 (\ KISCUKKII. Mniier. 1M. KM), ligs :>ls. ;>19. 

 Genus ANCYLOCERAS, .1'Orh. 



Shell at first spirsd. discoidal with separated whorls; iil'ter- 

 wanls produced :it ;i tangent :ind then bent buck ;ig:un upon 

 it-ell' like a hook. 



l-'oiMy ^[iccies. Inl'er. Oolitic. ( 'ret:iceous. tt n r<>i><' : 

 An i' r'n-n ; I'/tited Stair. <. 



\. S|INHiKRi;.M, Sowb. 1M. 100. lig. .Vjr. (iiiult. 

 i.'iiu.- ANISOCERAS, Piotet 



Shell :it lii-sl spii - :d, helicoid. whoi'ls sep.-i rnled. :t length more 

 or less prolonged nml retlectcd ; transversely ribbed: sutures of 

 septa with live lobes ;ind siuldles. nil bipartite. 



Twelve >|.ecics. (Jault to Upper Greensand, Europe. CretM- 

 ceous, .lnr:ts>ic, India. 

 \. SAUSSUREANI s. Pidet. IM. loo. lig. 528. 



<;n.us SCAPHITES, l':irkins..n. 



Shell :t lir-r dosel\ spi]-;d, involute. :it length det:iche<| and 

 recurved : Miiure* many lobed. lobes foliated. 



XilieU-eli -pecics. Oolitic. ( ' ret aceon>. Kuro/n'.: fmliti : 



.1 



8. K.. i \i-is.Sowb. IM. loo. lig. :>:>7. Chalk marl. Sussex, Eng. 



